alfano



G. ALFANO.

AUTOMATIC DEVICE FOR CUNTROLLING ELEVATOR DOORS.

APPLICATION FILED MAY 25| 1917.

Patented 11017.11, 1919.

3 SHEETS-SHEET l.

ATTORNEY G. ALFANO.

AUTOMATlC DEVICE FOR CONTROLLING ELEVATOR DOORS.

3 SHEETS-SHEET 2.

INVENTOR a MSe/a/ae .ffl few/2,0

ATTO R N EY G. ALFANO.

AUTOMATIC DEVICE FOR CONTROLLING ELEVATOR DOORS.

9. 1 OU 1|. L, 1 V. T0 D d e t .m t a D1 al, .m Z Y A M D u N AU .H A CU DI DI A 3 SHEETS-SHEET 3.

INVENTOR ahy@ 29h EQ 8M.

ATToRN EY GIUSEPPE ALFANO, OF NEW YORK, N. Y.

AUTOMATIC DEVICE FOR CONTROLLING ELEVATOR-IDOORS. I

Specification of Letters Patent.

Patented Nov. 11, 1919.

Application filed. May 25, 1917. Serial No. 171,059.

To all lwhom t may concern Bc it known that I, GIUSEPPE ALrANo, asubject of the King of Italy, residing at New York city, in the countyof New York and State of New York, have invented new and usefulimprovements in Automatic Devices for Controlling Elevator-Doors, ofwhich the following is a specification.

This invention relates to an automatic device for controlling elevatordoors and the object is to provide means whereby the door of an elevatorcar or cage and the doors of a shaft may be controlled in one operation.

A further object is to provide for the cooperation of two sets ofcollapsible and sliding doors in a certain novel manner whereby theoperation of one set in effecting the opening` movement will cause theoperation of the other set by engagement between the meeting edges ofthe doors of the respective sets or pairs.

A still further object is to provide operating' and guiding meanscarried by the upper and lower portions of a car and eX- tending inopposite directions Y therefrom, adapted for engaging means carried bythe cooperating doors of the shaft for opening and closing` said doors,and means whereby the Opbration of the doors named will cause thecorresponding operation of the collapsible doors of tie cage.

A still further object is to provide a collapsible door of a typeespecially adapted for carrying out the purpose of this invention andfor cooperation with a sliding door for closing the shaft opening.

In the drawings:

Figure 1 is a view in front elevation of the shaft doors and showingalso the cage doors in front elevation.

Fig. 2 is a front elevation of the shaft doors in open position.

Fig. 3 is a front elevation showing the cage doors in open position.

Figs. 4, 5, and 6 are details of construction described below.

Referring to the drawings in detail, the shaft structure is designated10' and the cage or car which may be of any suitable design orconstruction is shown at 12, this cage being' provided with a pluralityo1' collapsible doors 13 and 14 for closing the front of the cage. Theshaft opening is provided with sliding doors 15 and 16 and the doorslast named are operated by certain devices carried by the car andprojecting from the upper portion or roof of the car and from the lowerportion.

The upper guiding and operating device comprises a triangular frameincluding channeled niembers 17 and 18, these members being deflectedtoward each other at their upper portionand provided with open ends 19and 20, one wall of each channel being outwardly flared as shown at 21.A similar guiding and operating frame projects downwardly from the floorof the car and the channeled portions thereof are designated 23 and 24.

The sliding doors 15 and 16 each include the upper and lower bars 26 and27, an outer vertical bar 28 and an inner vertical bar or rail 29adapted to contact with the corresponding rail or bar of the opposite`door. These meeting bars or rails are each provided with guide engagingmembers designated 30 pro-vided with enlarged end portions or heads 31which directly engage the channeled portions 17, 18, 23 and 24E carriedby the cage. These members 30 extend laterally and then inwardly towardthe doors of the cage and therefore toward the channeled membersmentioned.

The door frame l2 comprises a plurality of upper and lower angle membersconnected lat their ends with vertically extending bars 413 and 441.

As the cage approachesv a floor, the engaging devices 30 pass into theends 19 and 20 of the channeled guides 17 and 18, if the Car is movingupwardly, and if the car is moving in the opposite direction they passwithin the converging portions of the channel members 23 and 24.Channels 17 and 23, or rather the inner flanges of said channels, areconnected by means of a guiding bar 50, and a similar bar 51 iscorrespondingly located on the opposite side. As the car passes into aposition for causing the floor thereof to come into a plane with thefloor of the building at which it is desired to stop, the engagingdevices 30 will pass from the channeled guides, the doors then beinginVtheir open position, and said devices 30 will be further guided bymeans of the bars 50 and 51 above mentioned.

At the front portion ofthe cage and forming a portion of the upperframework thereof are a plurality of bars 55 and 56 constituting guidesfor the upper portion of the collapsible doors of the cage. The barsalso Y the door-way.

Each collapsible door is connected with .an upright of the cage, one ofthese being designated 61 and having connection with bar 59 by means ofa plurality of links. The centrally located bar 62 is provided withslots 63 and 64 each engaged by a headed pin`65 forming the pivotalconnection between the links 66 and 67, these links being pivoted attheir outer ends as indicated at 68 and 69, the first of theseconnections being with bar 59 and the other with bar 61. A similar setof links has connection with slot 64 of bar 62 and also has connectionwith bars 59 and 61. The links forming this connection are designated 70and 71 and they v arefconnected'with links 66 and 67 by means of springs72 and 73. yA plurality of vertical bars 74-and 75 are located as shown,one being on yeach side of bar 62 and these bars 74 and 75 are pivotallyconnected with bar 62 by means of linksrand they are respectivelyconnectedwith bars 59 and 61. This link connection comprises linkmembers 76, 77, 78, and 79 near the upper end of each door, and asimilar connection is provided near the lower end of each door. Thereare therefore Vfour series of link connections between central bar 62and the stationarybar 61 and slidable bar 59 forming one of. the meetingmembers of the pair of collapsible doors. n

'In Figs.' 1 and 2 the vertical elements 29, suitably braced, are shownas extending above and below the doors and the frame fl-2, in order thatt-he cage doors may bc engaged in the manner indicated below, byelements 29, before the converging elements 17 and 18 on the cage haveengaged and opened the landing doors 15 and 16.

The sliding doors 15 and 16 being operated by engagement with theconverging channeled members previously described, the movement of saidsliding doors is communicated to the collapsible doors in view of thebroad flange member 60 extending outwardly and forming a portion ofangle bar 59. This flange 60 and the vertical bar 29 on each slidingdoor are in engagen'lent, and the cage doors are therefore collapsedupon the movement of the sliding doors.

It may be added that the sliding doors 15 and 16 carry guiding devices 5adapted to coperate with the upper and lower transverse members 6 and 7of the frame 42.

What is claimed is:

1. In a device of the class described, a plurality of sliding doors foran elevator shaft, converging guiding members adapted to be carried by acage, means carried by thc sliding doors engaging said convergingmembers, a plurality of collapsible cage doors, means for operating thedoors last named upon the movement of the sliding doors and devicesconstituting mounting means for the converging members and guiding meansfor the collapsible doors.

2. In a device of the class described, an elevator cage, a plurality ofcollapsible doors therefor each including a vertical member, means forguiding the latter when collapsing said doors, a plurality ofo linkconnections between said member, and a stationary portion of the cage,and means engaging said doors for collapsing the latter automatically.

In testimony whereof I aliix my signature.

eiusnrrn nLFANo.

Copies of this patent may be obtained forve cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

